Alger on New Locality of Red Sapphire. 123 
supply in the mineral the deficiency which appears in the 
quantity of water, as well as the fractional equivalent assigned 
to the.alumina. 
‘The mineral above described, from its hardness and specific 
gravity is evidently to be referred to the order zeolite. In its 
density it approaches datholite and prehnite, to which it is 
much inferior in hardness, while from the rare species, eding- 
tonite, to which in hardness and density it is closely allied, it 
is distinguished by its crystallization. Under these circum- 
stances, I offer it as a new mineral species which will take a 
place by the side of edingtonite ; and to connect with his 
favorite science, the name of one who is among its most suc- 
cessful cultivators, I propose for it the designation of Algerite. 
Montreal, C. E., May 5th, 1849. 
Arr. X. — Examination of a Mineral from Cherokee 
County, in Georgia. By Francis ALGER. 
(Communicated April, 1849.) 
Ir readily scratches quartz, chrysolite, and topaz. It was 
supposed to be garnet, and in color it approaches the pyrope 
garnet, of which it has the same lamellar structure in one direc- 
tion ; but is at once distinguished from all the garnets by its 
greater hardness and specific gravity, and by its characters 
before the blowpipe. These characters also distinguish it 
from rubellite, or red tourmaline, with which it has also been 
confounded. Dr. Feuchtwanger, to whom I am indebted for 
the mineral, has considered it new, and several other mineral- 
ogists who have seen it have not given any decided opinion as 
to its nature. It seemed to me that a mineral so gem-like in 
appearance, and possessing such hardness and specific gravity, 
must be allied to the sapphire class; and my examination of it 
has now fully identified it with that interesting mineral. It is, 
in fact, a splendid red sapphire, of a much deeper color than 
DEC. 1849. 
